Layer 2 Interworking ETH/Vlan to FR

taoufikbelmekki · ‎05-05-2011

hi everyone,

i'm issuing a problem with the Layer 2 ETH/VLAN to Frame relay interwroking.

actually it works fine on the ETH/VLAN Side , the problem occure on the FR side where i notification msg while executing a CLI commande :

PEconfig)#connect fr_iw serial 7/0/23:0 200 l2transport
PE(config-fr-pw-switching)#xconnect 10.1.1.2 900 pw-class IW-FR-VLAN
Interworking specified in pw-class is not supported on this interface

i took a look on Google and Cisco but unfortunatly i didn't get any result ...

i guess its an restriction on the type of interface but a should confirm this with Experts like you

here's the output of the show interface s7/0/23:0

Serial7/0/23:0 is up, line protocol is up
Hardware is Channelized E1T1 controller
MTU 1600 bytes, BW 34000 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
Encapsulation FRAME-RELAY IETF, crc 16, loopback not set
Keepalive set (10 sec)
LMI enq sent 6559, LMI stat recvd 6559, LMI upd recvd 0, DTE LMI up
LMI enq recvd 6560, LMI stat sent 6558, LMI upd sent 0, DCE LMI up
LMI DLCI 1023 LMI type is CISCO frame relay NNI
Broadcast queue 0/256, broadcasts sent/dropped 0/0, interface broadcasts 0
Last input 00:00:01, output 00:00:09, output hang never
Last clearing of "show interface" counters 18:13:11
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Interface Serial7/0/23:0 queueing strategy: PXF Class-based
30 second input rate 0 bits/sec, 0 packets/sec
30 second output rate 0 bits/sec, 0 packets/sec
     13119 packets input, 188051 bytes, 0 no buffer
     Received 0 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     2 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 2 abort
     13117 packets output, 179201 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 output buffer failures, 0 output buffers swapped out
     0 carrier transitions no alarm present
Timeslot(s) Used: 0-31, subrate: 2048Kb/s, transmit delay is 0 flags
non-inverted data

looking forward to hear you're analysis

and thanks in advance

yashfaqu · ‎05-05-2011

Hi, it depends on platform as well as module, can you send us the show ver and show inv.

taoufikbelmekki · ‎05-05-2011

here are the output requested :

show ver :

Cisco IOS Software, 10000 Software (C10K4-K91P11-M), Version 12.2(33)SB9, RELEASE SOFTWARE (fc5)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2010 by Cisco Systems, Inc.
Compiled Mon 18-Oct-10 19:33 by prod_rel_team

ROM: System Bootstrap, Version 12.2(20071113:194412) [shalpin-rom-1_2 101], DEVELOPMENT SOFTWARE

PE uptime is 6 weeks, 2 days, 11 hours, 32 minutes
Uptime for this control processor is 6 weeks, 2 days, 10 hours, 58 minutes
System returned to ROM by reload at 01:34:37 UTC Tue Mar 22 2011
System restarted at 01:35:45 UTC Tue Mar 22 2011
System image file is "disk0:c10k4-k91p11-mz.122-33.SB9.bin"
Last reload type: Normal Reload
Last reload reason: Reload command

This product contains cryptographic features and is subject to United
States and local country laws governing import, export, transfer and
use. Delivery of Cisco cryptographic products does not imply
third-party authority to import, export, distribute or use encryption.
Importers, exporters, distributors and users are responsible for
compliance with U.S. and local country laws. By using this product you
agree to comply with applicable laws and regulations. If you are unable
to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:
http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to
export@cisco.com.

Cisco C10008 (PRE4-RP) processor (revision V02 ) with 2588671K/163839K bytes of memory.
Processor board ID NWG133401J0
SB-1 CPU at 800Mhz, Implementation 0x410, Rev 5.0, 512KB L2 Cache
Backplane version 1.0, 8 slot

Last reset from software reset
PXF processor tmc0 is running.
PXF processor tmc1 is running.
PXF processor tmc2 is running.
PXF processor tmc3 is running.
1 FastEthernet interface
5 Gigabit Ethernet interfaces
101 Serial interfaces
48 Channelized E1 ports
16 Subrate T3/E3 ports
7039K bytes of non-volatile configuration memory.

125440K bytes of ATA compact flash in bootflash (Sector size 512 bytes).
500472K bytes of ATA compact flash in disk0 (Sector size 512 bytes).
Standby is up
Standby has 2752512K bytes of memory
Configuration register is 0x102

for the show inventory i can't unfortunatly provide it because of some restriction on the ACS ...

yashfaqu · ‎05-05-2011

Make sure you are have configured it in this way:

config t
mpls label protocol ldp

interface Loopback100
 ip address 10.0.0.100 255.255.255.255

pseudowire-class fr-eth
 encapsulation mpls
 interworking ip


frame-relay switching

interface serial 2/0/0:1
 encapsulation frame-relay
 frame-relay intf-type dce
 frame-relay interface-dlci 567 switched

connect mpls serial 2/0/0:1 567 l2transport
 xconnect 10.0.0.200 150 pw-class fr-eth

if configurations are fine, then you need to tell us the module of Ethernet and E1, to find out the real cause.

taoufikbelmekki · ‎05-05-2011

Hi Yasir,

i forgot to past the interface configuration it was a frame-relay intf-type nni.

interface Serial7/0/23:0

mtu 1600
bandwidth 34000
no ip address
encapsulation frame-relay IETF
load-interval 30
frame-relay intf-type nni
max-reserved-bandwidth 100

i used the configuration u provide and i got the same msg

interface Serial7/0/23:0
mtu 1600
bandwidth 34000
no ip address
encapsulation frame-relay IETF
load-interval 30
frame-relay intf-type dce
max-reserved-bandwidth 100
end